6-Methylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione CAS 35265-80-6
| CAS No. | 35265-80-6 |
| Molecular Formula | C7H8N2O2S |
| Molecular Weight | 184.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H8N2O2S, 6-Methylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 184.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
6-Methylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione (CAS 35265-80-6) is a high-purity analytical reference standard with the molecular formula C7H8N2O2S and a molecular weight of 184.22 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 6-Methylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H8N2O2S |
| Molecular Weight | 184.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methylthieno Standards
- 7-Methylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione (CAS 35265-81-7)
- 3-methylthieno[3,2-b]pyridine-7-carbonitrile (CAS 1623011-38-0)
- 3-Methylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione (CAS 123260-26-4)
- 7-Methylthieno[2,3-b]pyrazine-2,3(1H,4H)-dione (CAS 149587-33-7)
- 7-Methylthieno[3,2-d]pyrimidine-2,4(3H,4aH)-dione (CAS 464216-52-2)
- 3-MEthylthieno[3,2-b]pyridine-5,7(4h,6h)-dione (CAS 1356016-32-4)
- 6-Methylthieno[3,2-d]pyrimidine-2,4-diamine (CAS 109879-87-0)
- 6-methylthieno[2,3-d]pyrimidine-4-thiol (CAS 25710-07-0)
Recommended Standards
- 6-Amino-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide (CAS 916438-46-5)
- 6-Propionyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 37785-37-8)
- 6-Amino-1,3-dihydrobenzo[c]isothiazole 2,2-dioxide (CAS 841476-52-6)
- 7,8-Dihydro-5H-Thiopyrano[4,3-D]Pyrimidine-2,4-Diol (CAS 857956-61-7)
- H-D-Phe-Pro-OH (CAS 51926-52-4)
- 2-(Azetidin-1-yl)-3-nitropyridine (CAS 1851034-75-7)
- 6-Chloro-5-(difluoromethyl)-4-methylnicotinic acid (CAS 1806940-03-3)
- alpha-Chloro-3-nitrobenzaldoxime (CAS 33512-94-6)
- 1-(2,4-dichlorophenyl)cyclohexane-1-carbonitrile (CAS 1037130-92-9)
- 1-(5-Isopropylisoxazol-3-yl)ethanol (CAS 861136-08-5)
- tert-Butyl 2-(aminomethyl)piperazine-1-carboxylate (CAS 1441161-43-8)
- 3-(Tert-butyl)-N-(4-chlorobenzyl)-4-(4-fluorophenyl)thiazol-2(3H)-imine (CAS 866010-05-1)
- (R)-2,5-Dioxotetrahydrofuran-3-yl acetate (CAS 79814-40-7)
- Cyclopeptide-5 (CAS 197172-76-2)
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